Improvement in handles for cross-cut saws



UNITED STATES ATEN'I ALEXANDER O. MARTIN, OF CINCINNATI, OHIO.

IMPROVEMENT lN HANDLES FOR CROSS-CUT SAWS- Specification forming part ofLetters Patent No. 125,899, dated April '23, 1872.

Nature and Objects of the Invention.

My invention relates to the arrangement of an eccentric, a rod, and anut, in combination with the handle of a cross-cut saw, for attachingthe handle to the saw, whereby a cheap, secure and convenient handle isproduced, and to the arrangement of a drop-pin which acts as a fulcrumin attaching the handle to the saw.

Description of the Accompanying Drawing.

Figure l is a perspective view of the handle of a saw embodying myinvention, attached to the end of a saw. Fig. 2 is a longitudinalsection through the center of the same.

General Description.

A represents the blade of an ordinary crosscut saw. B is the metallicportion of the handle, and is made broad and fiat at its lower end, witha slit for the end of the saw to enter. This slit should be justsufficiently wide to allow the saw to enter freely, so that its jaws orcheeks may rest against and support the blade when in operation. Uponthe upper end of B is a ferrule to receive the wooden portion of thehandle. 0 is an eccentric or lever, pivoted at D, the flat, short, orouter end of which rests against the end of the saw-blade, and the inneror longer end passes through an eye in the lower end of the rod E, whichpasses through the center of the handle, and has a cap or nut, F, uponits upper end. H is a loose pin,which serves to keep the handle in placebefore being screwed on tight, and, in the act of fastening, serves as afulcrum. Any loose pin will answer the purpose, but as loose pins areliable to get lost, I prefer to so incase it that it can not getseparated from the handle. I therefore make a concave on one cheek deepenough to allow the pin to drop free of the saw-blade without droppingout. A spring may also be used to keep the pin in place.

The operation of the device is as follows: The saw-blade is to beprovided with a hole for the pin H. The end of the saw-blade is placedin the slit of the handle and moved till the pin H drops into the holein the blade. The nut F is then tightened, which draws the rod E up andwith it the inner end of the lever (J, which presses its other endagainst the end of the saw, which moves round the pin H till the lowercorner of the end of the saw presses against the lower end of thehandle, when the whole will be found to be firmly and securely attached.When it is desired to remove the handle, unloosen the nut F, turn thesaw upon its side, and allow the pin H to drop out, when the saw may beremoved.

The whole is very simple and durable, and being perfectly smooth andeven there is nothing about it to catch and tear the clothes of theoperator, who is enabled to hold the handle close to the saw, andthereby exert his power to better advantage. Another advantage in havingthe rod E pass through the handle is,

in adjusting, the wood is screwed tightly into Claim. Having thusdescribed myinvention, I claim as new and desire to secure by LettersPat.

ent-

The combination of the metallic holder B, the handle with the screw-rodE, cam-lever (l, and pin H, comprising a detachable handlefor a saw orother instrument, substantially as herein described.

ALEX. C. MARTIN. Witnesses:

EDWARD Born,

MARCUS A. HUNT.

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